Mozilla's early goals were extremely ambitious—the original Mozilla application suite included a browser, a complete mail and newsgroup program, a web design tool, and an IRC client.

Mozilla 早期的野心很大，Mozilla 最早的应用套件包括浏览器，邮件和新闻组程序，Web 设计工具，IRC 聊天工具。

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The entire Mozilla application suite and associated spin-offs (such as Firefox and Thunderbird) are, at heart, applications written using XUL, an XML language for defining user interfaces.

整个 Mozilla 应用程序包和相关的附件（如 Firefox 和 Thunderbird），其核心就是用 XUL 编写的，XUL 是一种用于定义用户界面的 XML 语言。

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